First catalogue of the rust fungi of French Guiana, northern South America

Abstract

An annotated list of the rust fungi (Uredinales or Pucciniales) of French Guiana is presented. It enumerates 68 species of which 57 are new reports for the department and 3, Aecidium plukenetiae, Puccinia kourouensis and P. parianicola, are new to science. Dicheirinia guianensis and Hapalophragmium angylocalycis are excluded from the French Guianan mycobiota. New host plants are reported for Batistopsora crucis-filii, B. pistila, Cerotelium ficicola, C. sabiceae, Crossopsora piperis, Desmella aneimiae, Endophyllum guttatum, Kweilingia divina, Puccinia lateritia, Uredo anthurii and Uromyces anguriae. Previously undescribed characters are presented for Achrotelium lucumae, Chaconia ingae, Cerotelium sabiceae, Prospodium amapaensis, Sphenospora smilacina and Uromyces wulffiaestenoglossae. Chaconia ingae showed haustorial complexes comprising both intracellular hyphae and D-haustoria. In Cerotelium sabiceae, the haustorial mother cells retained the nuclei while D-haustoria were enucleate. The occurrence of these haustorial types in tropical rust fungi is discussed. Internal basidium formation is described for the first time in Sphenospora: teliospores of S. smilacina produced external or internal basidia. The species richness and composition of the French Guianan rust mycobiota are discussed in a neotropical context.

Phylogenetic relationships among fern rust fungi and <i>Desmella lygodii</i> comb. nov.

“…R. Br., L. venustum , and L. volubile Sw. in the neotropics to date ( Arthur, 1924 ; Sydow, 1925 ; Kern & Thurston, 1943 ; Hennen & McCain, 1993 ; Hennen, Figueiredo, Carvalho Jr., & Hennen, 2005 ; Hernández, Aime, & Henkel, 2005 ; Berndt, 2013 ), while L. flexuosum is newly reported as a host plant of the rust species in this study.…”

Riqueza de fungos causadores de ferrugens em plantas hospedeiras da Região Metropolitana de Belém, PA, Brasil

“…Porém, incluindo as espécies já registradas e as depositadas nos herbários, a riqueza da área da RMB (76), é superior às estimadas neste estudo. Sendo superior aos dados registrados em outros estudos do bioma Amazônia, como os de Sotão et al (2013), para a Floresta Nacional de Caxiuanã, no Estado do Pará (72) e Berndt (2013), para a Guiana Francesa (68).…”

Chaconia heliconiae and C. clusiae sp. novae from French Guiana with notes on the genus Chaconia (Uredinales/Pucciniales) in the neotropics

“…128-158) formed by haustorial mother cells that were part of the intercellular mycelium. This is in contrast to C. ingae, in which the entire parasitic mycelium grew within the host cells and formed intracellular hyphae and D-haustoria (Berndt 2012). Different haustorial types and colonization strategies were also found in the well-circumscribed genus Ravenelia (Berndt 1997).…”